He also collaborated with Wren on the look of St Paul's Cathedral; Hooke determined The best shape of the arch is definitely an inverted catenary and thence that a circular number of this sort of arches tends to make an ideal form to the cathedral's dome.[109] شکل ۵: جسمی که https://charlie454k4.wikijournalist.com/5087515/the_ultimate_guide_to_هوک